'Label Registered U.S. Patent Off - Patent Applied For Copyright 1928 - Radio Questionaire Corp''A Mystifying - Educational Game'Flashes the answer -BY WIRELESS- To Thousands of QuestionsPlayers must answer questions given by cards placed in the box. By arranging the metal indicators, the correct answer can be determined by a small light lighting up when the answer has been chosen correctly.What is most interesting is not that the device actually flashes the answer 'by wireless', as displayed prominently in the name of the game and on the cover, but rather does so by simple electrical connections that are 'hidden' underneath the platform that holds the dials. - BoardGameGeek